43053-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 43053-81-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,3,0,5 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 43053-81:
(7*4)+(6*3)+(5*0)+(4*5)+(3*3)+(2*8)+(1*1)=92
92 % 10 = 2
So 43053-81-2 is a valid CAS Registry Number.
43053-81-2Relevant articles and documents
Synthesis of 2-cyano-1-(4-nitrophenyl)pyrrole and its 5-bromo- and 4,5-dibromo derivatives
Pavlov
, p. 1310 - 1312 (2001)
1-(4-Nitrophenyl)pyrrole-2-carbaldehyde and its 5-b + romo- and 4,5-dibromo derivatives react with hydrazoic acid in chloroform in the presence of Mg(CIO4)2·2.5H2O (Schmidt reaction) to form the corresponding pyrrole-2-car